Unity - problem with arms rotation and flip, body flip and shotting - 2d shooter

I separated the main_body sprite from the arm sprite and made a script for body flip and another for arm rotation and flip, but now this happens:

If i make arm sprite child of main_body sprite i get this:

Here is my arm_rotation code:

 public class ArmRotation : MonoBehaviour
 {
     SpriteRenderer spriteRend;
     public Transform Firepoint;
 
 
     void Awake()
     {
         spriteRend = GetComponent<SpriteRenderer>();
     }
 
     void Update()
     {
         AimArmAtMouse();
     }
 
     void AimArmAtMouse()
     {
         Vector2 mousePosition = (Vector2)Camera.main.ScreenToWorldPoint(Input.mousePosition);   //get the mouse position as a Vector2
         Vector2 armToMouse = mousePosition - (Vector2)transform.position; //get the vector from the arm to the mouse
         float rotationZ = Vector2.SignedAngle(transform.right, armToMouse);  //calculates the angle
         transform.Rotate(0f, 0f, rotationZ);  //rotates the transform by that angle
         FlipArm(Vector2.SignedAngle(transform.right, Vector2.right)); //calls the FlipArm method and passes in the angle of the arm relative to the world
     }
 
     void FlipArm(float rotation)
     {
         if (rotation < -90f || rotation > 90f)
         {
             spriteRend.flipY = true;
             FlipFirePoint(true);
 
         }
         else
         {
             spriteRend.flipY = false;
             FlipFirePoint(false);
  
         }
     }
     void FlipFirePoint(bool flip)
     {
         var pos = Firepoint.localPosition;
         pos.y = Mathf.Abs(pos.y) * (flip ? -1 : 1);
         Firepoint.localPosition = pos;
     }
 
 }

and my body rotation code:

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class BodyRotation : MonoBehaviour
 {
 
 
     void Update()
     {
         Flip();
     }
 
     void Flip() //Flips player based on mouse's position relative to it's center.
     {
         Vector3 theScale = transform.localScale;
         Vector3 pos = new Vector3(Input.mousePosition.x, Input.mousePosition.y, 0);
         float WorldXPos = Camera.main.ScreenToWorldPoint(pos).x; //Converts screen point to point in world
 
         if (WorldXPos > gameObject.transform.position.x)
         {
             theScale.x = 1;
             transform.localScale = theScale;
         }
 
         else
         {
             theScale.x = -1;
             transform.localScale = theScale;
         }
 
     }
 }

Any sugestion on how i can fix my problem? Thank you!